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Open Library vs Parking St.Gallen

Same instrument, two spec sheets — measured, not claimed.

APIOpen LibraryHEALTHY—Parking St.GallenNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseMixed — mostly openUnverified
Free tierUnlimited within courtesy limitsFree — limits not published
Rate limitSoft — identified UA appreciatedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

Open Library vs Parking St.Gallen: common questions

Which is more reliable, Open Library or Parking St.Gallen?

On our scheduled checks, Parking St.Gallen leads on measured uptime — Open Library at —% versus Parking St.Gallen at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Open Library and Parking St.Gallen need an API key?

Neither needs a paid key — Open Library is callable with no signup, and Parking St.Gallen is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open Library and Parking St.Gallen from the browser?

Yes — both Open Library and Parking St.Gallen send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Open Library and Parking St.Gallen free for commercial use?

Open Library has unclear commercial terms, and Parking St.Gallen has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.